- [Emperor Thaurissan] : [Master Jouster] has good synergy with the Giants and the rest of the deck.
- [Sylvanas Windrunner]: [Cairne Bloodhoof] comes to mind or a [Sunwalker]
- [Lord Jaraxxus]: You dare to replace Eredar Lord of the Burning Legion without suffering horrible consequences? Jokes aside, even amongst Legendaries only [Ysera] have somewhat similar game-reversing potential value. Try another [Frost Giant] or [North Sea Kraken] if you are going to be complete cheapskate.
- -1 [Sylvanas Windrunner] +1 [Acidic Swamp Ooze]
- -2 [Ancient Watcher] +1 [Frost Giant] +1 [Shadowflame]
As a Handlock your primary mulligan target is to have Turn 4 play. That is either [Twilight Drake], which has permanent cost or [Mountain Giant], who’s cost vary depending on your hand size. Keep them in your starting hand along with any tauntgivers. It is also a must to keep at least one AoE spell present in your starting hand. [Hellfire] is a Turn 4 play too, sometimes one and only sensible. [Dark Peddler] early is mostly a trick play for Handlock, but can be a great asset in finding anti-aggro tech cards.
[Mortal Coil] is always to keep. In case you would be given those choices: [Molten Giant] is more desirable in those matchups than [Mountain Giant], [Sunfury Protector] is more convenient than [Defender of Argus], [Earthen Ring Farseer] better suits your curve than [Refreshment Vendor]. It is also good to have [Dark Peddler] or [Hellfire], but your starting hand space is limited. As a general rule try to estimate nature (spells or physical) and amount of potential damage to decide what cards you will or will not have time to play.
Your ideal starting hand in those matchups is a [Mountain Giant], [Twilight Drake] and [Dark Peddler] to scare enemy into thinking he is against badly mulliganed Zoo deck.